Fuzzy reliability in hydraulics

Author

Shrestha, B.P. ; Reddy, R.K. ; Duckstein, L.

Author_Institution

Arizona Univ., Tucson, AZ, USA

fYear

1990

fDate

3-5 Dec 1990

Firstpage

167

Lastpage

172

Abstract

A fuzzy reliability model is developed for a flood levee where both load and resistance are assumed to be fuzzy. A new measure of reliability index is proposed within the framework of fuzzy set theory to assess the reliability of such a hydraulic structure. The methodology is illustrated with a case study on an existing levee system of Sebes-Koros River in Hungary. The load is taken as the fuzzy wind wave action above the 100 year flood level; the resistance of the levee to wind waves is also considered to be fuzzy. A parametric analysis on the widths of the fuzzy set membership functions of both load and resistance is carried out. The results indicate that the proposed index may be a viable measure of reliability in such problems

Keywords

fuzzy set theory; reliability theory; rivers; Hungary; Sebes-Koros River; flood levee; fuzzy reliability model; fuzzy set theory; hydraulic structure; membership functions; reliability index; reliability theory; Civil engineering; Electrical resistance measurement; Floods; Fuzzy set theory; Fuzzy sets; Fuzzy systems; Industrial engineering; Levee; Reliability engineering; Reliability theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Uncertainty Modeling and Analysis, 1990. Proceedings., First International Symposium on

Conference_Location

College Park, MD

Print_ISBN

0-8186-2107-9

Type

conf

DOI

10.1109/ISUMA.1990.151244

Filename

151244